.el-header{
    background-color: #1890ff;
    height: 80px;
    --el-header-height: 80px;
}
.el-aside{
    width: 300px;
    height: calc(100vh - 80px);
    background-color: green;
    overflow: auto;
    border: none;
}
/*滚动条整体样式*/
.el-aside::-webkit-scrollbar {
    /*高宽分别对应横竖滚动条的尺寸*/
    width: 5px;
    height: 1px;
}

/*滚动条里面小方块*/
.el-aside::-webkit-scrollbar-thumb {
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);
    background: #535353;
}

/*滚动条里面轨道*/
.el-aside::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);
    border-radius: 10px;
    background: #EDEDED;
}

.el-main{
    background-color: greenyellow;
    height: calc(100vh - 80px);
}